Sears 917.254710 - Manual (Page 22)

3. Csrhufowr Adpstment
NOTE: ADJUST THHOTTL6 CONTROL CABLE
BEEORE WAKING ANY ADJUSTMENT TO CAR*
BURETOR. AIR CLEANER MUST 8E ASSEMBLED TO
CARBURETOR WHEN RUNNING ENGINE
Minor carburetor adjustments may be required to
compensate far differences in fuel, temperatura
or altitude. Adjust the carburetor fuel mixture
as follomr
a. Gently turn idle mixture valve clockwise
ffP 30) until it Just closes and then
counterclockwise (} 1~V2 turns.
CAUTION; Valve may be damaged If turned
In too far.
b. Start engine and allow to warm for five
minutes. Make final adjustments with engine
running and choke pushed in.
c. Move throttle control lever (on dashboard) to
"SLOW" position.
d. Hold governor control lever against idle speed
screw, and adjust Idle speed screw to obtain
1200 to 1400 RPM (Fig. 29}.
0 , While still holding the governor control lever
agairtsi Idle speed screw, turn Idle mixture valve
slowly clockwise f"*- ¡(lean mlxturef until speed
just starts to slow,
f. Turn idle mixture valve back to the midpoint
between rich and lean.
g. Adjust the idle speed screw to obtain 900 to
7200 RPM. Release governor control lever,
h. Move throttle control (on the dashboard) to
"FAST" if engine hesitates or dies, turn idle
mixture valve approximately t/& turn counter­
clockwise (■^) until engine will accelerate
as throttle control is moved from "SLOW"
to "FAST."
4. Fuse Repiecement
Replace with 30 amp automotive-type piug-ln
fuse.
REPAIR & ADJUSTMENT
AIR GUI&E
COVER
an
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